Reduction of Contention Between Driver Circuitry

1. An electronic display comprising: a display panel comprising a pixel array, wherein the display is configured to receive a supply voltage and a gate line voltage; and a panel driver comprising an amplifier that receives and amplifies a reference voltage to generate an amplified reference voltage as the gate line voltage and a control circuitry that selectively provides the gate line voltage along a path to the display panel, wherein the control circuitry comprises: a first comparator comprising a first input terminal to receive the reference voltage, a second input terminal to receive a threshold voltage, and a first output terminal to output a first control signal when the reference voltage is greater than the threshold voltage; a first switch along the path to the display panel that is closed upon receiving the first control signal; a second comparator comprising a third input terminal to receive the supply voltage, a fourth input terminal to receive the amplified reference voltage when the first switch is closed, and a second output terminal to output a second control signal when the supply voltage is greater than the gate line voltage; and a second switch along the path to the display panel that is closed upon receiving the second control signal, wherein closing the second switch enables providing the gate line voltage to the display.

2. The electronic display of claim 1 , wherein the first switch is configured to remain open when the reference voltage is less than the threshold voltage.

3. The electronic display of claim 1 , wherein the panel driver comprises a third output configured to provide the gate line voltage to the display panel, and the second switch is configured to selectively provide the gate line voltage from the path to the third output.

4. A display panel driver comprising: a first input configured to receive a reference voltage; a second input configured to receive a supply voltage; an output configured to provide a gate line voltage; an amplifier configured to amplify the reference voltage to generate an amplified reference voltage as the gate line voltage; a first switch configured to selectively provide the gate line voltage along a path to the output based on a first control signal; a first comparator configured to generate the first control signal based on a comparison of the reference voltage and a threshold voltage; a second switch configured to selectively provide the gate line voltage to the output based on a second control signal; and a second comparator configured to generate the second control signal based on a comparison of the gate line voltage with the supply voltage to prevent a current flowing from the output from flowing to a source of the supply voltage.

5. The display panel driver of claim 4 , wherein the amplified reference voltage is provided along the path as the gate line voltage.

6. The display panel driver of claim 4 , wherein the first switch is configured to receive the first control signal from the first comparator, and wherein the first control signal closes the first switch when the reference voltage is greater than the threshold voltage.

7. The display panel driver of claim 4 , comprising a polarity inverter coupled to an input of the second comparator and configured to invert the polarity of one of the supply voltage or the gate line voltage.

8. A method comprising: receiving a supply voltage at a panel driver; receiving a reference voltage at the panel driver; amplifying the reference voltage to generate an amplified reference voltage as a gate line voltage; selectively providing the gate line voltage along a path to an output of the panel driver, wherein the gate line voltage is selectively provided along the path based on a comparison between the reference voltage and a threshold voltage; and selectively outputting the gate line voltage from the panel driver, wherein the gate line voltage is selectively outputted based on a comparison of the gate line voltage with the supply voltage to prevent a current of the gate-line voltage from flowing from the panel driver to a source of the supply voltage.

9. The method of claim 8 , wherein the amplified reference voltage is selectively provided along the path as the gate line voltage.

10. The method of claim 8 , wherein the threshold voltage comprises a fixed voltage and the comparison between the reference voltage and the threshold voltage is provided by a comparator generating a control signal.

11. The method of claim 10 , comprising selectively providing the amplified reference voltage along a path as the gate line voltage based on the control signal.

12. A display panel driver comprising: a first input configured to receive a supply voltage; a second input configured to receive a reference voltage; an amplifier configured to amplify the reference voltage to generate an amplified reference voltage to operate as a gate line voltage; a first switch configured to selectively provide the gate line voltage along a path to an output of the display panel driver after the reference voltage reaches a fixed voltage; and the output configured to selectively provide the gate line voltage based on a comparison of the gate line voltage with the supply voltage to prevent a current of the gate line voltage from flowing to a source of the supply voltage, wherein the gate line voltage is provided by the output when the gate line voltage falls below the supply voltage.

13. The display panel driver of claim 12 , comprising a comparator configured to compare the reference voltage with the fixed voltage and generate a control signal based on the comparison.

14. The display panel driver of claim 13 , wherein the first switch is configured to receive the control signal from the comparator and selectively provide the amplified reference voltage along the path as the gate line voltage based on the control signal.

15. The display panel driver of claim 14 , comprising a second switch configured to selectively provide the gate line voltage to the output when the gate line voltage falls below the supply voltage.